Data for households with children 0-5 in poverty is available by PUMA and the request is for that data by SPA. We created a PUMA-SPA crosswalk to facilitate calculating numbers and percentages of households with children 0-5 by SPA.
There are 71 PUMAs in LA County with blue borders with identification numbers between 03703 and 03782, with 037 being the LA County identifier. These numbers are on the initial labeling on the map hover.
There are 8 SPAs in LA County with black borders numbered one through eight below. You can see these labels by turning off/unchecking the PUMA layer. Note: SPA 7 has a cut out of SPA 8 in the Signal Hill area.
The crosswalk of PUMAs to SPAs we use to attribute household 0-5 poverty data are the colored areas, colored by SPA. The areas without colors are the smaller portions of PUMAs that overlap multiple SPAs. For example, the non-colored portion of PUMA 03709 (at the center of the map in La Canada Flintridge) is the portion of PUMA 03709 that falls in SPA 2. The vast majority of PUMA 03709 falls in SPA 3, so it is attributed to SPA 3 and not SPA 2. We don’t attribute fractions of PUMAs to SPAs because the additional the potential increase in accuracy is outweighed by a decrease in statistical stability.